This is a notice of a proposed sole-source contract for maintenance and support of Eaton UPS systems at the Air Force Research Laboratory in Rome, New York. The contract includes a base year with two one-year options, covering 7x24 coverage, preventive maintenance, and an eight-hour maximum response time. The government intends to negotiate solely with Eaton Corporation, as no other source can meet the requirement due to proprietary diagnostics and warranty restrictions. The government anticipates an award date on or before 27 July 2026. No budget amount is specified.